[NTLUG:Discuss] ext3 vs. XFS vs. ....

[Leroy Tennison]

Burton Strauss wrote:
> Flywheel or motor/generator sets used to be common in the mainframe world -
> they used to use weird power (415Hz IIRC), so the way to convert line power
> was a motor/generator set. 
>
> The mechanical aspects afforded some (small) protection against power
> problems (one to two cycle drops).
>
> They are not cheap.  Google for 'motor generator set'.
>
> -----Burton
>
>
>
> -----Original Message-----
> From: Discuss-bounces at ntlug.org [mailto:Discuss-bounces at ntlug.org] On Behalf
> Of Leroy Tennison
> Sent: Wednesday, May 03, 2006 4:48 AM
> To: NTLUG Discussion List
> Subject: Re: [NTLUG:Discuss] ext3 vs. XFS vs. ....
>
> <snip />
>
> Another curious, wild thought came to mind.  Anyone know how expensive it
> would be to have an electric motor coupled to a generator via a relatively
> large/dense cylinder such that the computer was totally isolated from the
> external electrical environment?
>
>
> _______________________________________________
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>
>   
I had kind of assumed that they would be expensive but thought I'd ask.  
"motor generator set" huh, OK, I might check sometime.  Thanks.